Ogundiyi Alex I, Bemji Martha Nchang, Adebambo Olufunmilayo A, Dipeolu Morenike A, Onagbesan Okanlawon M, James Ikechwuku J, Osinowo Olusegun A
Department of Animal Breeding and Genetics, University of Agriculture, PMB 2240, Abeokuta, Ogun, Nigeria.
Trop Anim Health Prod. 2012 Aug;44(6):1263-9. doi: 10.1007/s11250-011-0067-z. Epub 2012 Jan 13.
This study was carried out to assess the prevalence of mange in sheep and goats in five local government areas (LGAs) of Ogun State in South Western Nigeria. A total of 4,973 sheep and 7,902 goats of West African Dwarf breeds were sampled of which only 4 (0.08%) of sheep and 42 (0.53%) of goats were confirmed positive for mange infestation. In all the LGAs sampled, Odeda LGA had the highest concentration of sheep (39%) and goats (51%) while Abeokuta South had the least percentage of sheep (1%) and goats (1%). All the mange-infested cases in sheep were recorded in just one LGA (Ewekoro) which constituted 0.24% of the population within the location. For goats, three out of five LGAs namely: Obafemi Owode, Ewekoro and Abeokuta North had prevalence of 1.46%, 0.53% and 0.72% respectively. There was no significant (P > 0.05) difference between non-infested and infested animals in terms of packed cell volume (31.79 ± 0.87% vs. 31.41 ± 1.13%), haemoglobin (10.51 ± 0.21 g/100 ml vs. 10.28 ± 0.37 g/100 ml) and red blood cells (8.71 ± 0.29 × 10(12)/l vs. 9.40 ± 0.37 × 10(12)/l). The infested group however showed significantly (P < 0.01) higher white blood cells count (7.60 ± 0.22 × 10(9)/l) than the non-infested animals (6.81 ± 0.17 × 10(9)/l). Neutrophil, eosinophil, basophil and monocyte as well as chloride were not significantly affected by the health status of the animals. There existed significant (P < 0.01) difference between non-infested and infested animals in terms of total protein (5.42 ± 0.16 vs. 4.75 ± 0.20 g/dl), sodium (137.98 ± 1.53 vs. 128.92 ± 1.92 mEq/l) and potassium (4.04 ± 0.14 vs. 3.46 ± 0.18 mEq/l). It can be concluded from this study that the prevalence of mange mite infestation varied with location and was generally low or absent in some of the LGAs considered. Goats were particularly more susceptible to mange infestation than sheep. More concerted effort is needed to control mange in order to avoid spread since it is a contagious disease.
本研究旨在评估尼日利亚西南部奥贡州五个地方政府辖区（LGAs）绵羊和山羊疥癣的流行情况。共对4973只西非矮种绵羊和7902只西非矮种山羊进行了采样，其中仅4只（0.08%）绵羊和42只（0.53%）山羊被确诊为疥癣感染阳性。在所有采样的地方政府辖区中，奥代达地方政府辖区绵羊（39%）和山羊（51%）的数量最多，而阿贝奥库塔南区绵羊（1%）和山羊（1%）的比例最低。绵羊的所有疥癣感染病例仅记录在一个地方政府辖区（埃韦科罗），占该地区总数量的0.24%。对于山羊，五个地方政府辖区中的三个，即奥巴费米·奥沃德、埃韦科罗和阿贝奥库塔北区的患病率分别为1.46%、0.53%和0.72%。未感染和感染动物在红细胞压积（31.79±0.87%对31.41±1.13%）、血红蛋白（10.51±0.21 g/100 ml对10.28±0.37 g/100 ml）和红细胞（8.71±0.29×10¹²/l对9.40±0.37×10¹²/l）方面没有显著（P>0.05）差异。然而，感染组的白细胞计数（7.60±0.22×10⁹/l）显著（P<0.01）高于未感染动物（6.81±0.17×10⁹/l）。中性粒细胞、嗜酸性粒细胞、嗜碱性粒细胞、单核细胞以及氯化物不受动物健康状况的显著影响。未感染和感染动物在总蛋白（5.42±0.16对4.75±0.20 g/dl）、钠（137.98±1.53对128.92±1.92 mEq/l）和钾（4.04±0.14对3.46±0.18 mEq/l）方面存在显著（P<0.01）差异。从本研究可以得出结论，疥螨感染的患病率因地点而异，在所考虑的一些地方政府辖区中普遍较低或不存在。山羊比绵羊尤其更容易感染疥癣。由于疥癣是一种传染病，需要更加齐心协力地控制，以避免传播。
